Tom took a taxi to the airport only his plane high up in the sky.A. findingB. to findC.

问题补充：

Tom took a taxi to the airport, only his plane high up in the sky.

A. finding

B. to find

C. being found

D. to have found

答案：

A. finding

(答案→)B. to find

C. being found

D. to have found

解析：本题考查非谓语动词。句意为：汤姆乘的士赶到机场，结果只发现他要乘坐的飞机已经飞入高空了。此处only后接动词不定式to do表示意想不到的结果。故选B。